%0 Journal Article
%T Characteristics of Heavy Metal Pollution in Daninghe River and Modaoxi River of Three Gorges Reservoir Areas<br>三峡库区大宁河与磨刀溪重金属污染特征
%A AN Li-hui
%A ZHANG Yan-qiang
%A ZHENG Bing-hui
%A LIU Yue
%A SONG Shuang-shuang
%A LI Zi-cheng
%A CHEN Hao
%A ZHAO Xing-ru
%A LIN Jin
%A <br>安立会
%A 张艳强
%A 郑丙辉
%A 刘玥
%A 宋双双
%A 李子成
%A 陈浩
%A 赵兴茹
%A 林进
%J 环境科学
%D 2012
%I 
%X In order to explore the potential ecological risk of heavy metals in Three Gorges Reservoir areas, the present study analyzed the heavy metals in sediments and wild crucain carp from Daning River and Modaoxi River which are two typical tributaries, and then the potential risk was evaluated using potential ecological risk index for sediments and comprehensive pollution index for fish, respectively. The results showed that concentrations of Zn and Cr were higher (Daning River: 78.31 and 83.98 mg ·kg-1; Modaoxi River: 99.03 and 94.20 mg ·kg-1), while Cd was the lowest (Daning River: 0.62 mg ·kg-1; Modaoxi River: 0.75 mg ·kg-1). Moreover, an obvious increasing trend of these elements was observed in these tributaries from upstream to downstream. For the wild crucain carp, the lowest concentrations of these elements were detected in muscles, and the highest concentrations were in the intestinal. However, no obvious increasing trend of these elements was observed from upstream to downstream. The potential ecological risk in sediments showed a high risk, while no risk was observed in fish.
%K Three Gorges Reservoir
%K heavy metals
%K crucain carp (Carassiuscarassius)
%K sediments
%K potential ecological risk index
%K comprehensive pollution index<br>三峡库区
%K 重金属
%K 鲫鱼
%K 沉积物
%K 潜在生态危害指数法
%K 综合污染指数法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=669A8D56CCC2B6A10FA4FDFCBAB36DAD&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=5D311CA918CA9A03&sid=BDEEFD81A983ED75&eid=5B656E9A4096A94C&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=35